Traduction d'une phrase ambiguë

[nicofig]

Jérôme a mis le doigt sur une difficulté de traduction en posant cette question sur la partie anglophone :

Sorry if this topic has already been dealt with, but I couldn't find it in the thread.

Lionel and I had a problem in our last game concerning the mounted troop light spear POA.

The table phrasing is : "against any troops if no other POAs (other POAs cancel out)"

Does it means that if the mounted troop with light spear has any other POA in its favour then this specific POA does'nt count ?

or that if the net result of all POA between the mounted troop and its opponent is 0 then this POA count ?

It might look obvious but not so much for a non native english-speaking player

La réponse de Richard est la suivante :

that if the net result of all POA between the mounted troop and its opponent is 0 then this POA count ?

This is correct.

Quelle traduction française pensez vous la plus juste pour éviter cette ambiguité ?
Merci

[olivier]

Après confirmation de certains points aupre de Richard, je pense qu'elle peut se traduire comme:
"Le POA de la lance legere ne s'applique que si la somme des POA avant son application est nulle"